[tests-only][full-ci] test(cli): add acceptance tests for the search optimize command

[anon-pradip]

Description

Adds acceptance tests for the new ocis search optimize CLI command (#12136), which compacts the Bleve search index without re-indexing content.

What's included

• New feature file tests/acceptance/features/cliCommands/searchOptimize.feature with two scenarios:
  • optimize the search index: covers the full contract: clean index -> reindex -> baseline search (207) -> stop server -> optimize -> start server -> file still searchable with exact expected results. The baseline search before optimizing isolates failures (reindex problem vs optimize problem).
  • optimize the search index without any indexed content: verifies the command succeeds and prints index optimization complete on an empty index. No reindex and no search assertions, because optimize compacts segments, it does not index content.
• Reliability fix: searchWithRetry in SearchContext.php is now two-phase. It polls until the search service answers HTTP 207 after a restart (~63s budget), then polls for results (~13s). This removes the flaky fixed-sleep pattern that failed after server restarts while keeping the old fast path for scenarios that never restart anything.
• New config constant SERVICE_READY_RETRY_COUNT in bootstrap.php.

Related Issue

• Part of: [QA] Add new automated tests #12472

Motivation and Context

How Has This Been Tested?

• test environment:
• test case 1:
• test case 2:
• ...

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[kw-security]

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[PrajwolAmatya]

Suggested change

	And the administrator reindexes all spaces using the CLI
	When the administrator reindexes all spaces using the CLI